Ionic Bonding Puzzle Activity Answer Key <2026 Update>

| Metal Ion | Nonmetal Ion | Ratio (Metal:Nonmetal) | Chemical Formula | Compound Name | | :--- | :--- | :--- | :--- | :--- | | Na⁺ | Cl⁻ | 1:1 | NaCl | Sodium chloride | | K⁺ | Br⁻ | 1:1 | KBr | Potassium bromide | | Mg²⁺ | Cl⁻ | 1:2 | MgCl₂ | Magnesium chloride | | Ca²⁺ | O²⁻ | 1:1 | CaO | Calcium oxide | | Al³⁺ | F⁻ | 1:3 | AlF₃ | Aluminum fluoride | | Al³⁺ | O²⁻ | 2:3 | Al₂O₃ | Aluminum oxide |

| Cation | Anion (Polyatomic) | Ratio | Chemical Formula | Compound Name | | :--- | :--- | :--- | :--- | :--- | | Na⁺ | NO₃⁻ | 1:1 | NaNO₃ | Sodium nitrate | | Ca²⁺ | NO₃⁻ | 1:2 | Ca(NO₃)₂ | Calcium nitrate | | NH₄⁺ | Cl⁻ | 1:1 | NH₄Cl | Ammonium chloride | | NH₄⁺ | SO₄²⁻ | 2:1 | (NH₄)₂SO₄ | Ammonium sulfate | | Mg²⁺ | OH⁻ | 1:2 | Mg(OH)₂ | Magnesium hydroxide | ionic bonding puzzle activity answer key

In the puzzle, assuming all pieces connect only one way can lead to incorrect ratios. Always check the charge sum before writing the final formula. | Metal Ion | Nonmetal Ion | Ratio